CN211549913U - High inlet pressure-resistant water pressure plunger pump equipment without shaft seal - Google Patents
High inlet pressure-resistant water pressure plunger pump equipment without shaft seal Download PDFInfo
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- CN211549913U CN211549913U CN201922402181.1U CN201922402181U CN211549913U CN 211549913 U CN211549913 U CN 211549913U CN 201922402181 U CN201922402181 U CN 201922402181U CN 211549913 U CN211549913 U CN 211549913U
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- plunger pump
- pump
- pipeline
- water pressure
- hydraulic ram
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Abstract
The embodiment of the application discloses water pressure plunger pump equipment of high inlet pressure of tolerating of no bearing seal includes: the water pressure plunger pump is used for pumping water, and the submersible motor, the coupler and the stainless steel metal pipeline are used for driving the water pressure plunger pump to operate; the water pressure plunger pump with the dive motor pass through behind the coupling joint set up in the stainless steel metal pipeline, make the dive motor can drive the water pressure plunger pump is in synchronous rotation in the stainless steel metal pipeline. By adopting the shaft-seal-free water pressure plunger pump equipment capable of resisting the high inlet pressure, the water pressure plunger pump is prevented from using a shaft sealing element, the pressure requirement of an inlet structure can be changed from the pressure bearing capacity limited by the shaft sealing element to the pressure bearing capacity equivalent to that of a stainless steel metal pipeline, and the pressure resistance and the reliability of a pump product are improved.
Description
Technical Field
The embodiment of the application relates to the field of mechanical manufacturing of water treatment equipment, in particular to a water pressure plunger pump device without a shaft seal and capable of enduring high inlet pressure.
Background
With the continuous development of economic society, the water pressure driving technology has outstanding advantages of environmental protection, energy conservation, safety and the like, so that the water pressure driving technology becomes a novel driving technology which is widely concerned by people. The hydraulic plunger pump uses the flowing water medium for self-lubricating, has high working pressure, high efficiency and low power consumption, and has wide application in the water treatment fields of seawater desalination, landfill leachate treatment, industrial wastewater zero discharge and the like. The hydraulic plunger pump is a positive displacement water pump and achieves the purpose of conveying a medium by means of volume change generated by axial reciprocating motion of a plunger abutting against the surface of a swash plate. The basic operating principle of this pump is also the same as that of a swash plate type plunger pump. The shaft seal of the hydraulic plunger pump generally adopts light mechanical seal for the pump, and the working pressure range is within 1 MPa. As is well known, mechanical seals are common key parts of pump shaft seals and are also vulnerable parts. When impurities appear in water, the mechanical seal is easy to wear, so that the leakage problem of a conveying medium is caused, and the pollution is caused to a working site. In some special application occasions, the inlet pressure of the pump body is higher and reaches 4MPa or even higher, and engineering technicians can select the medium-sized mechanical seal (the working pressure reaches more than 4 MPa) for the pump at the moment. This is inherently satisfactory for withstanding high inlet pressures, but in the event of a failure of the mechanical seal, high pressure media may be ejected, causing injury to personnel or other equipment. The damage may be even greater if the media is at a higher temperature or is particularly corrosive and hazardous. Further, if the inlet pressure reaches above 6MPa, the type selection of the mechanical seal becomes more difficult.
The mechanical seal of the existing hydraulic plunger pump is a vulnerable part. The reliability of the mechanical seal is further reduced when the inlet pressure is high, and the hazard from its failure is further exacerbated. In particular, finding a reliable mechanical seal can be extremely difficult when the inlet pressure is higher. Therefore, in order to solve the above problems, how to design a hydraulic plunger pump capable of withstanding high inlet pressure without sealing a shaft has become a major issue for those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the application provides a hydraulic plunger pump device without a shaft seal and capable of resisting high inlet pressure, so as to solve the problem that the hydraulic plunger pump in the prior art is limited by the pressure bearing capacity of a mechanical seal, so that the hydraulic plunger pump is poor in hydraulic resistance and reliability and is easy to damage people or other devices.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
the embodiment of the present application provides a water pressure plunger pump equipment of high inlet pressure of tolerating of no bearing seal, includes: the water pressure plunger pump is used for pumping water, and the submersible motor, the coupler and the stainless steel metal pipeline are used for driving the water pressure plunger pump to operate; the water pressure plunger pump with the dive motor pass through behind the coupling joint set up in the stainless steel metal pipeline, make the dive motor can drive the water pressure plunger pump is in synchronous rotation in the stainless steel metal pipeline.
Further, the coupling includes: the first submersible motor coupling and the second submersible motor coupling.
Further, the hydraulic plunger pump apparatus without a shaft seal, which can withstand high inlet pressure, further comprises: a hydraulic plunger pump shaft and a submersible motor shaft; the water pressure plunger pump with the dive motor pass through behind the coupling joint set up in the stainless steel metal pipeline, specifically do, water pressure plunger pump shaft with the dive motor shaft passes through first dive motor shaft coupling with the second dive motor shaft coupling carries out fixed connection.
Further, the stainless steel metal pipe includes: a pipeline inlet housing, a pipeline body and a pipeline outlet housing; the pipeline inlet shell, the pipeline main body and the pipeline outlet shell are connected in a welding mode.
Furthermore, a supporting seat for providing radial support and positioning is arranged on the submersible motor.
Further, the hydraulic plunger pump includes: the inlet structure is communicated with the middle part of a pump rear cover of the hydraulic plunger pump; and the outlet structure is in threaded centering connection with a pipeline end cover joint of the stainless steel metal pipeline.
Furthermore, the hydraulic plunger pump and the submersible motor are fixed through bolts.
Furthermore, a pump mounting flange for fixing a pump swash plate is arranged at one end of the hydraulic plunger pump, which is connected with the submersible motor; and the other end of the hydraulic plunger pump is also provided with a pump valve plate.
Further, the hydraulic plunger pump is a swash plate type plunger pump.
Furthermore, a pump revolving body structure is arranged inside the water pressure plunger pump.
Adopt this application the water pressure plunger pump equipment of high inlet pressure of tolerance of no bearing seal, after encapsulating dive motor and water pressure plunger pump into the pipeline, can cancel the epaxial sealing member of water pressure plunger pump, avoided water pressure plunger pump to use epaxial sealing member, can make entry structure pressure requirement become with stainless steel metal pipeline's bearing capacity equivalence by the bearing capacity that is limited in epaxial sealing member, improved the pressure endurance and the reliability of pump product to the ability of absorbing water of pump product has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a hydraulic plunger pump apparatus without a shaft seal and capable of withstanding high inlet pressure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of portion A-A of a high inlet pressure tolerant hydraulic plunger pump apparatus without a shaft seal according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of section B-B of a high inlet pressure tolerant hydraulic plunger pump apparatus without a shaft seal according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a portion C-C of a high inlet pressure tolerant hydraulic plunger pump apparatus without a shaft seal according to an embodiment of the present invention.
Wherein, in fig. 1-4: the submersible motor is 1, the submersible motor shaft is 2, the hydraulic plunger pump shaft is 3, the pump mounting flange is 4, the pump swash plate is 5, the pump shell is 6, the pump port plate is 7, the pump rear cover is 8, the pipeline end cover joint is 9, the pipeline end cover is 10, the pipeline screw gland is 11, the pipeline outlet is 12, the first submersible motor coupler is 13, the second submersible motor coupler is 14, the pump swivel body is 15, the pipeline outlet shell is 16, the pipeline main body is 17, the pipeline inlet shell is 18, the supporting seat is 19, the bolt is 20, the inlet structure is 21 and the outlet structure is 22.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a water pressure plunger pump equipment of high entry pressure of tolerance of no bearing seal, the dive motor that will tolerate certain water pressure and water pressure plunger pump (following content also can be referred to as simply "pump") link together admittedly, then arrange stainless steel metal pipeline in, adopt dive motor drive water pressure plunger pump, accomplish the pumping work. The submersible motor side in the stainless steel metal pipeline is a water inlet side, and water flows into the stainless steel metal pipeline, is sucked by the water pressure plunger pump through a gap between the submersible motor and the pipeline wall, and then flows out from the outlet of the water pressure plunger pump and the water outlet side of the pipeline. Because the whole hydraulic plunger pump (including the hydraulic plunger pump shaft which needs to be provided with the mechanical seal originally) is immersed in the conveyed medium, the problem of water leakage does not need to be considered, and the original mechanical seal design is not needed any more; the inlet pressure is born by the stainless steel metal pipeline, and the joint of the stainless steel metal pipeline is sealed by the static sealing element, so that the product is more reliable and safer.
Embodiments of the non-shaft seal hydraulic plunger pump apparatus that is tolerant to high inlet pressures are described in detail below. Fig. 1 is a schematic structural diagram of a hydraulic plunger pump apparatus capable of withstanding high inlet pressure without a shaft seal according to an embodiment of the present application. The specific implementation process comprises the following steps: the water pressure plunger pump is used for pumping water, the submersible motor 1 is used for driving the water pressure plunger pump to operate, the coupler and the stainless steel metal pipeline are arranged on the water pressure plunger pump; the water pressure plunger pump with dive motor 1 passes through set up after the coupling joint in the stainless steel metal pipeline, it is right through seal structure stainless steel metal pipeline's linkage part seals, makes dive motor 1 can drive the water pressure plunger pump is in synchronous rotation in the stainless steel metal pipeline. Wherein, the shaft coupling includes: a first submersible motor coupling 13 and a second submersible motor coupling 14.
The stainless steel metal pipe includes: a duct inlet housing 18, a duct body 17 and a duct outlet housing 16; the pipeline inlet shell 18, the pipeline main body 17 and the pipeline outlet shell 16 are connected in a welding mode.
In an embodiment of the present application, the shaft seal-free hydraulic plunger pump apparatus capable of withstanding high inlet pressure further comprises: the hydraulic plunger pump comprises a hydraulic plunger pump shaft 3 connected with the hydraulic plunger pump and a submersible motor shaft 2 connected with the submersible motor 1. The water pressure plunger pump with dive motor 1 passes through behind the coupling joint set up in the stainless steel metal pipeline, concrete realization process is: and the water pressure plunger pump shaft 3 and the end of the submersible motor shaft 2 are fixedly connected through the first submersible motor coupler 13 and the second submersible motor coupler 14, and after the water pressure plunger pump and the submersible motor 1 are fixedly connected through the bolt 20 and arranged in the pipeline main body 17.
In addition, one end of the hydraulic plunger pump, which is connected with the submersible motor 1, is provided with a pump mounting flange 4 for fixing a pump swash plate; the other end of the hydraulic plunger pump is also provided with a pump valve plate 7, a pump rear cover 8 and the like; as shown in fig. 1, the hydraulic plunger pump further includes at least a pump swivel body 15, a pump housing 6, and the like. It should be noted that, since the pump swivel body 15 has a relatively general swivel structure, the pump swivel body 15 is not shown in detail in fig. 1 of the present invention, but is replaced by a drawing frame.
Further, as shown in fig. 2, it is a sectional view of a portion a-a of a hydraulic plunger pump apparatus capable of withstanding high inlet pressure without a shaft seal according to an embodiment of the present invention. In order to prevent the sliding of the submersible motor 1 arranged inside the stainless steel metal pipeline, a supporting seat 19 for radially supporting and positioning the submersible motor 1 is arranged on the submersible motor 1. It should be noted that the number of the supporting seats 19 for providing the radial supporting and positioning functions can be set according to practical situations, and is not limited in particular.
In the specific implementation process, the water pressure plunger pump with submersible motor 1 passes through behind the coupling joint set up in the stainless steel metal pipeline, the specific implementation process is: the hydraulic plunger pump without a mechanical seal is fixed at an installation seam allowance of the submersible motor 1, the hydraulic plunger pump shaft 3 is connected with the submersible motor shaft 2 through a coupler, and is further arranged in a pipeline main body 17 of the stainless steel metal pipeline after the hydraulic plunger pump and the submersible motor 1 are fixed through bolts 20, so that the submersible motor 1 can drive the hydraulic plunger pump to stably and synchronously rotate in the stainless steel metal pipeline.
Fig. 3 is a cross-sectional view of a portion B-B of a hydraulic plunger pump apparatus that is tolerant to high inlet pressures and is free of shaft seals according to an embodiment of the present invention. The submersible motor 1 and the hydraulic plunger pump are symmetrically provided with at least two bolts 20 for fixing after being connected through a coupler.
Fig. 4 is a cross-sectional view of a portion C-C of a hydraulic plunger pump apparatus that is tolerant to high inlet pressures and is free of shaft seals according to an embodiment of the present invention. The hydraulic plunger pump further includes: an inlet structure 21 and an outlet structure 22 communicated with the middle part of the rear cover of the hydraulic plunger pump; the outlet structure 22 is in threaded centering connection with the pipeline end cover joint 9 of the stainless steel metal pipeline, and the hydraulic plunger pump is fixedly connected to the tail part of the submersible motor 1 through at least two bolts 20.
As can be seen from fig. 1 and 4, the features of the pump back cover 8 may include: unlike the inlet structure 21 of the conventional hydraulic plunger pump, which considers that the flow area caused by the pipeline connection form may be affected, the inlet structure 21 can make the inlet large so that the medium can better flow into the pump swivel body 15 without affecting the structural strength; the outlet structure 22 is opened to the middle of the pump rear cover 8, so that the outlet structure can be in threaded centering connection with the pipeline end cover joint 9 of the subsequent stainless steel metal pipeline.
The utility model discloses an implementation process as follows: firstly, respectively installing a first submersible motor coupler 13 and a second submersible motor coupler 14 on a submersible motor shaft 2 and a hydraulic plunger pump shaft 3, then fixing the hydraulic plunger pump to the tail part of a submersible motor 1 by at least two bolts 20 under the condition of aligning to the couplers of the submersible motor 1, then welding a pipeline end cover joint 9 and a pipeline outlet 12 on a pipeline end cover 10, screwing the pipeline end cover joint 9 into a central hole of a pump rear cover 8 and sealing the central hole by an O-shaped ring; then the submersible motor 1, the hydraulic plunger pump and the pipeline end cover 10 are inserted into the stainless steel metal pipeline together, finally the positioning is realized in the axial direction through the end face of the pipeline outlet shell 16 and the sealing is realized through an O-shaped ring, and the axial position fixing of the internal parts of the pipeline is realized by the pipeline screw gland 11 in a mode of being in threaded connection with the pipeline outlet shell 16; the pipe end cap 10 together with the support base 19 of the submersible motor 1 effect radial position fixing of the pipe inner parts (coaxial with the pipe outlet housing 16, the pipe body 17 and the pipe inlet housing 18).
In the specific implementation, the medium (such as seawater, landfill leachate or industrial wastewater) enters through the copy forest interface channel of the pipeline inlet housing 18, passes through the gap between the submersible motor 1 and the pipeline main body 17, and enters the low-pressure side of the pump swivel body 15 through the inlet structure 21 of the pump rear cover 8 and the suction slot of the pump port plate 7. By the rotation of the pump swivel body 15, the medium enters the high pressure side and enters the outlet structure 22 of the pump rear cover 8 from the discharge groove of the pump port plate 7, and finally flows out after passing through the pipe end cover joint 9, the pipe end cover 10 and the pipe outlet 12. As the whole hydraulic plunger pump is immersed in the medium in the stainless steel metal pipeline, the hydraulic plunger pump shaft 3 connected with the hydraulic plunger pump does not need a sealing element to perform a mechanical sealing structure for preventing leakage. Meanwhile, as long as the pressure bearing capacity of the stainless steel metal pipeline is enough, the leakage and the possible risks caused by overhigh pressure at the inlet of the hydraulic plunger pump are not worried. It should be noted that the pipe inlet housing 18, the pipe outlet housing 16 and the pipe main body 17 are sealed by welding, but may be in other structural forms capable of realizing pipe connection, and are not limited in particular.
Adopt the water pressure plunger pump equipment of the high entry pressure of tolerance of no bearing seal, seal into stainless steel metal pipeline with dive motor and water pressure plunger pump after, can avoid using water pressure plunger pump's axle to use sealing member, can make entry structure pressure require become by the bearing capacity that is limited to axle with sealing member with stainless steel metal pipeline's bearing capacity equals, extended the water-absorbing capacity of pump product, improved the pressure-resistant capacity and the reliability of pump product.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned only are embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. A high inlet pressure tolerant hydraulic ram apparatus without a shaft seal, comprising: the water pressure plunger pump is used for pumping water, and the submersible motor, the coupler and the stainless steel metal pipeline are used for driving the water pressure plunger pump to operate; the water pressure plunger pump with the dive motor pass through behind the coupling joint set up in the stainless steel metal pipeline, make the dive motor can drive the water pressure plunger pump is in synchronous rotation in the stainless steel metal pipeline.
2. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1, wherein the coupling comprises: the first submersible motor coupling and the second submersible motor coupling.
3. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 2 further comprising: a hydraulic plunger pump shaft and a submersible motor shaft;
the water pressure plunger pump with the dive motor pass through behind the coupling joint set up in the stainless steel metal pipeline, specifically do, water pressure plunger pump shaft with the dive motor shaft passes through first dive motor shaft coupling with the second dive motor shaft coupling carries out fixed connection.
4. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1, wherein the stainless steel metal conduit comprises: a pipeline inlet housing, a pipeline body and a pipeline outlet housing; the pipeline inlet shell, the pipeline main body and the pipeline outlet shell are connected in a welding mode.
5. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1 wherein a support seat is provided on the submersible motor for providing radial support and positioning.
6. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1, wherein the hydraulic ram pump comprises: the inlet structure is communicated with the middle part of a pump rear cover of the hydraulic plunger pump; and the outlet structure is in threaded centering connection with a pipeline end cover joint of the stainless steel metal pipeline.
7. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1, wherein the hydraulic ram apparatus and the submersible motor are bolted together.
8. The high inlet pressure tolerant hydraulic ram pump apparatus without a shaft seal of claim 1, wherein a pump mounting flange for securing a pump swash plate is provided at one end of the hydraulic ram pump connected to the submersible motor; and the other end of the hydraulic plunger pump is also provided with a pump valve plate.
9. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1 wherein the hydraulic ram pump is a swash plate ram pump.
10. The high inlet pressure tolerant hydraulic ram apparatus without a shaft seal of claim 1 wherein a pump swivel structure is provided internally of the hydraulic ram pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922402181.1U CN211549913U (en) | 2019-12-27 | 2019-12-27 | High inlet pressure-resistant water pressure plunger pump equipment without shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922402181.1U CN211549913U (en) | 2019-12-27 | 2019-12-27 | High inlet pressure-resistant water pressure plunger pump equipment without shaft seal |
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| Publication Number | Publication Date |
|---|---|
| CN211549913U true CN211549913U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922402181.1U Active CN211549913U (en) | 2019-12-27 | 2019-12-27 | High inlet pressure-resistant water pressure plunger pump equipment without shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211549913U (en) |
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2019
- 2019-12-27 CN CN201922402181.1U patent/CN211549913U/en active Active
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